BIO 235 EXAM 4 QUESTIONS WITH
CORRECT DETAILED ANSWERS;
100% GUARANTEED PASS
_______ ____________ _______________ mark the
splice sites in the ___________. - correct answer-
exon junction complexes, mRNA
_________ mutant repressor - cannot bind to operator,
enzymes produced _________________ - correct
answer- lacl-, constitutively
__________ ___________________ influences the
tightness of chromatin packaging - correct answer-
histone modifications
__________ and ____________ defined the roles of the
lac genes by genetic analysis of many lacI− mutants -
correct answer- Jacob, Monod
,__________ normal repressor - can bind to operator,
enzymes are ________ _______________ - correct
answer- lacl+, not produced
___________ ______________ yields an organism that is
genotypically a mixture of normal and mutated
tissue(mosaic) - correct answer- somatic
mutations
____________ __________________ Can Begin Before
Transcription Is Completed - correct answer-
bacterial translation
_____________ ________________ - overall effect of
_______________ is to prevent ______ gene expression
- correct answer- catabolite repression, glucose,
lac
_____________ __________________: they produce
phenotypic changes under specific (permissive conditions)
conditions but not others (restrictive conditions) -
correct answer- conditional mutation
,_____________ mutations
Caused by ________________ agents
-Agents that are known to induce the frequency of
mutations are _______________ - correct answer-
Induced, environmental, mutagens
______________ ________________ _______________-
conditional mutation whose expression depends on
temperature - correct answer- temperature
sensitive mutation
______________ _________________- they produce
phenotypic changes under specific conditions -
correct answer- conditional mutations
________________ _________________ are proteins that
influence the ability of _______ ________________ to
transcribe a given gene
, 2 types total= general and regulatory - correct
answer- transcription factors, rna polymerase
__________________ between transcription and
translation in bacteria - correct answer-
coupling
__________________ mutations
Result from abnormalities in cellular/biological processes
_______________ cause growth within the cell -
correct answer- Spontaneous, repression
1.General transcription factors
-Required for the binding of the _______
______________ to the core ________________ and its
progression to the elongation stage
Are necessary for _________ transcription - correct
answer- rna polymerase, promoter, basal
2.Regulatory transcription factors
CORRECT DETAILED ANSWERS;
100% GUARANTEED PASS
_______ ____________ _______________ mark the
splice sites in the ___________. - correct answer-
exon junction complexes, mRNA
_________ mutant repressor - cannot bind to operator,
enzymes produced _________________ - correct
answer- lacl-, constitutively
__________ ___________________ influences the
tightness of chromatin packaging - correct answer-
histone modifications
__________ and ____________ defined the roles of the
lac genes by genetic analysis of many lacI− mutants -
correct answer- Jacob, Monod
,__________ normal repressor - can bind to operator,
enzymes are ________ _______________ - correct
answer- lacl+, not produced
___________ ______________ yields an organism that is
genotypically a mixture of normal and mutated
tissue(mosaic) - correct answer- somatic
mutations
____________ __________________ Can Begin Before
Transcription Is Completed - correct answer-
bacterial translation
_____________ ________________ - overall effect of
_______________ is to prevent ______ gene expression
- correct answer- catabolite repression, glucose,
lac
_____________ __________________: they produce
phenotypic changes under specific (permissive conditions)
conditions but not others (restrictive conditions) -
correct answer- conditional mutation
,_____________ mutations
Caused by ________________ agents
-Agents that are known to induce the frequency of
mutations are _______________ - correct answer-
Induced, environmental, mutagens
______________ ________________ _______________-
conditional mutation whose expression depends on
temperature - correct answer- temperature
sensitive mutation
______________ _________________- they produce
phenotypic changes under specific conditions -
correct answer- conditional mutations
________________ _________________ are proteins that
influence the ability of _______ ________________ to
transcribe a given gene
, 2 types total= general and regulatory - correct
answer- transcription factors, rna polymerase
__________________ between transcription and
translation in bacteria - correct answer-
coupling
__________________ mutations
Result from abnormalities in cellular/biological processes
_______________ cause growth within the cell -
correct answer- Spontaneous, repression
1.General transcription factors
-Required for the binding of the _______
______________ to the core ________________ and its
progression to the elongation stage
Are necessary for _________ transcription - correct
answer- rna polymerase, promoter, basal
2.Regulatory transcription factors
